S. Das, H. Dutta, Degree of approximation of signals in certain Lipschitz classes by the Zweier–Euler product summability method of Fourier series, Math. Methods ...

We present an efficient and reliable algorithm for discrete least squares approximation of a real-valued function given at arbitrary distinct nodes in [ 0, 2π) by trigonometric polynomials. The ...

Inequalities in mathematical analysis constitute a fundamental tool for establishing bounds and approximations for a diverse array of functions. They underpin many theoretical results while also ...